Tang and Five Dynasties are the important period of Tai-hu region's economic development. Not only it's prosperity in agriculture, handicraft, and commerce but also its rapid growth in the population which made it the prominent source of tax revenue for the Tang Dynasty.To understand the Tai-hu region in the Tang and Five Dynasties period of economic development and its impact, this study aims to investigate Tai-hu region's advancement in agricultural technology, its wide variety of handicrafts production, and its economic prosperity in commerce.